Antique radios, Old Time Radios
BE
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Country:
Germany
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| Identical to |
BE
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| First Source
(s) |
1922 : Saga of the Vacuum Tube, Tyne p.432
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| Base |
Telefunken-Base 3 Pin+1 Socket (Codex=sp)
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| Was used by |
Telephony |
| Filament |
Vf 4.8 Volts / If 2.1 Ampere / Direct / Battery = |
| Description |
Für Multiplex-Telefonie.
Daten laut Siemens Zeitschrift 1922 (2. Jg.), 5./6. Heft, Seite 282ff:
Heizstrom: 2,1 A
Heizspannung: 4,8 V
Emission: 30 mA
Anodenspannung: 400 V
Durchgriff: 9%
Steilheit: 0,8 mA/V
Innerer Widerstand: 14 kOhm
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| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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BE: own collection
Peter den Boer † 2025
More ...
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Just Qvigstad
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BE: Die Elektronenröhren, Möller, 1922
Anonymous 15 Collector
More ...
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Collection of
Collection of a member from D |
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